Earlier this week it was announced that Simon West (Con Air, The Mechanic) had come on board to Direct Expendables 2 and now we know when production will kick off. The Sofia Echo is reporting production on Expendables 2 is set to begin at Nu Boyana studio in Bulgaria in September. Stallone is apparently best friends with the CEO David Varod which helped close the deal. The article also claims that most of the main cast including Bruce Willis will be back for the sequel but I have yet to here anything definitive aside from the return of Sylvester Stallone, Terry Crews and Randy Couture.